Purchasing power parities (PPP) conversion factor, local currency unit to international dollar
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 4.68 | 1 |
| 1991 | 4.58 | 1 |
| 1992 | 4.59 | 1 |
| 1993 | 4.52 | 1 |
| 1994 | 4.48 | 1 |
| 1995 | 4.35 | 1 |
| 1996 | 4.18 | 1 |
| 1997 | 4.11 | 1 |
| 1998 | 4.15 | 1 |
| 1999 | 4.32 | 1 |
| 2000 | 4.44 | 1 |
| 2001 | 4.58 | 1 |
| 2002 | 4.51 | 1 |
| 2003 | 4.56 | 1 |
| 2004 | 4.61 | 1 |
| 2005 | 4.5 | 1 |
| 2006 | 4.34 | 1 |
| 2007 | 4.45 | 1 |
| 2008 | 5.87 | 1 |
| 2009 | 7.76 | 1 |
Footnotes:
- Estimates are based on regression.
